I am lost with this problem help please

Question

There were 420 people who attended a play
.
The admission price 
was $3 for adults and 
$1 for children. The admission receipts totaled $960. How many adults and how many
children attended
the play
?

Answer 1

Let x = number of adult tickets

 

Then, 420 - x = number of student tickets

 

3x + 1(420-x) = 960

 

2x + 420 = 960

 

2x = 540

 

x = 270    and    420-x = 150

 

270 adult tickets and 150 children's tickets were sold